2 NOTE: getopt is now part of the C library, so if you don't know what
3 "Keep this file name-space clean" means, talk to drepper@gnu.org
6 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
7 1996, 1997, 1998, 2004 Free Software Foundation, Inc.
9 NOTE: This source is derived from an old version taken from the GNU C
12 This program is free software; you can redistribute it and/or modify it
13 under the terms of the GNU General Public License as published by the
14 Free Software Foundation; either version 2, or (at your option) any
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
27 /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
28 Ditto for AIX 3.2 and <stdlib.h>. */
37 #if !defined __STDC__ || !__STDC__
38 /* This is a separate conditional since some stdc systems
39 reject `defined (const)'. */
47 /* Comment out all this code if we are using the GNU C Library, and are not
48 actually compiling the library itself. This code is part of the GNU C
49 Library, but also included in many other GNU distributions. Compiling
50 and linking in this code is a waste when using the GNU C library
51 (especially if it is a shared library). Rather than having every GNU
52 program understand `configure --with-gnu-libc' and omit the object files,
53 it is simpler to just do this in the source for each such file. */
55 #define GETOPT_INTERFACE_VERSION 2
56 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
57 # include <gnu-versions.h>
58 # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
66 /* This needs to come after some library #include
67 to get __GNU_LIBRARY__ defined. */
68 #ifdef __GNU_LIBRARY__
69 /* Don't include stdlib.h for non-GNU C libraries because some of them
70 contain conflicting prototypes for getopt. */
73 #endif /* GNU C library. */
77 # if HAVE_STRING_H - 0
83 /* This is for other GNU distributions with internationalized messages.
84 When compiling libc, the _ macro is predefined. */
85 # if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
87 # define _(msgid) gettext (msgid)
89 # define _(msgid) (msgid)
93 /* Needed for ATTRIBUTE_UNUSED. */
96 /* This version of `getopt' appears to the caller like standard Unix `getopt'
97 but it behaves differently for the user, since it allows the user
98 to intersperse the options with the other arguments.
100 As `getopt' works, it permutes the elements of ARGV so that,
101 when it is done, all the options precede everything else. Thus
102 all application programs are extended to handle flexible argument order.
104 Setting the environment variable POSIXLY_CORRECT disables permutation.
105 Then the behavior is completely standard.
107 GNU application programs can use a third alternative mode in which
108 they can distinguish the relative order of options and other arguments. */
112 /* For communication from `getopt' to the caller.
113 When `getopt' finds an option that takes an argument,
114 the argument value is returned here.
115 Also, when `ordering' is RETURN_IN_ORDER,
116 each non-option ARGV-element is returned here. */
120 /* Index in ARGV of the next element to be scanned.
121 This is used for communication to and from the caller
122 and for communication between successive calls to `getopt'.
124 On entry to `getopt', zero means this is the first call; initialize.
126 When `getopt' returns -1, this is the index of the first of the
127 non-option elements that the caller should itself scan.
129 Otherwise, `optind' communicates from one call to the next
130 how much of ARGV has been scanned so far. */
132 /* 1003.2 says this must be 1 before any call. */
135 /* Formerly, initialization of getopt depended on optind==0, which
136 causes problems with re-calling getopt as programs generally don't
139 int __getopt_initialized = 0;
141 /* The next char to be scanned in the option-element
142 in which the last option character we returned was found.
143 This allows us to pick up the scan where we left off.
145 If this is zero, or a null string, it means resume the scan
146 by advancing to the next ARGV-element. */
148 static char *nextchar;
150 /* Callers store zero here to inhibit the error message
151 for unrecognized options. */
155 /* Set to an option character which was unrecognized.
156 This must be initialized on some systems to avoid linking in the
157 system's own getopt implementation. */
161 /* Describe how to deal with options that follow non-option ARGV-elements.
163 If the caller did not specify anything,
164 the default is REQUIRE_ORDER if the environment variable
165 POSIXLY_CORRECT is defined, PERMUTE otherwise.
167 REQUIRE_ORDER means don't recognize them as options;
168 stop option processing when the first non-option is seen.
169 This is what Unix does.
170 This mode of operation is selected by either setting the environment
171 variable POSIXLY_CORRECT, or using `+' as the first character
172 of the list of option characters.
174 PERMUTE is the default. We permute the contents of ARGV as we scan,
175 so that eventually all the non-options are at the end. This allows options
176 to be given in any order, even with programs that were not written to
179 RETURN_IN_ORDER is an option available to programs that were written
180 to expect options and other ARGV-elements in any order and that care about
181 the ordering of the two. We describe each non-option ARGV-element
182 as if it were the argument of an option with character code 1.
183 Using `-' as the first character of the list of option characters
184 selects this mode of operation.
186 The special argument `--' forces an end of option-scanning regardless
187 of the value of `ordering'. In the case of RETURN_IN_ORDER, only
188 `--' can cause `getopt' to return -1 with `optind' != ARGC. */
192 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
195 /* Value of POSIXLY_CORRECT environment variable. */
196 static char *posixly_correct;
198 #ifdef __GNU_LIBRARY__
199 /* We want to avoid inclusion of string.h with non-GNU libraries
200 because there are many ways it can cause trouble.
201 On some systems, it contains special magic macros that don't work
204 # define my_index strchr
211 # include <strings.h>
215 /* Avoid depending on library functions or files
216 whose names are inconsistent. */
219 extern char *getenv ();
236 /* If using GCC, we can safely declare strlen this way.
237 If not using GCC, it is ok not to declare it. */
239 /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
240 That was relevant to code that was here before. */
241 # if (!defined __STDC__ || !__STDC__) && !defined strlen
242 /* gcc with -traditional declares the built-in strlen to return int,
243 and has done so at least since version 2.4.5. -- rms. */
244 extern int strlen (const char *);
245 # endif /* not __STDC__ */
246 #endif /* __GNUC__ */
248 #endif /* not __GNU_LIBRARY__ */
250 /* Handle permutation of arguments. */
252 /* Describe the part of ARGV that contains non-options that have
253 been skipped. `first_nonopt' is the index in ARGV of the first of them;
254 `last_nonopt' is the index after the last of them. */
256 static int first_nonopt;
257 static int last_nonopt;
260 /* Bash 2.0 gives us an environment variable containing flags
261 indicating ARGV elements that should not be considered arguments. */
263 /* Defined in getopt_init.c */
264 extern char *__getopt_nonoption_flags;
266 static int nonoption_flags_max_len;
267 static int nonoption_flags_len;
269 static int original_argc;
270 static char *const *original_argv;
272 /* Make sure the environment variable bash 2.0 puts in the environment
273 is valid for the getopt call we must make sure that the ARGV passed
274 to getopt is that one passed to the process. */
276 __attribute__ ((unused))
277 store_args_and_env (int argc, char *const *argv)
279 /* XXX This is no good solution. We should rather copy the args so
280 that we can compare them later. But we must not use malloc(3). */
281 original_argc = argc;
282 original_argv = argv;
284 # ifdef text_set_element
285 text_set_element (__libc_subinit, store_args_and_env);
286 # endif /* text_set_element */
288 # define SWAP_FLAGS(ch1, ch2) \
289 if (nonoption_flags_len > 0) \
291 char __tmp = __getopt_nonoption_flags[ch1]; \
292 __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
293 __getopt_nonoption_flags[ch2] = __tmp; \
296 # define SWAP_FLAGS(ch1, ch2)
299 /* Exchange two adjacent subsequences of ARGV.
300 One subsequence is elements [first_nonopt,last_nonopt)
301 which contains all the non-options that have been skipped so far.
302 The other is elements [last_nonopt,optind), which contains all
303 the options processed since those non-options were skipped.
305 `first_nonopt' and `last_nonopt' are relocated so that they describe
306 the new indices of the non-options in ARGV after they are moved. */
308 #if defined __STDC__ && __STDC__
309 static void exchange (char **);
316 int bottom = first_nonopt;
317 int middle = last_nonopt;
321 /* Exchange the shorter segment with the far end of the longer segment.
322 That puts the shorter segment into the right place.
323 It leaves the longer segment in the right place overall,
324 but it consists of two parts that need to be swapped next. */
327 /* First make sure the handling of the `__getopt_nonoption_flags'
328 string can work normally. Our top argument must be in the range
330 if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
332 /* We must extend the array. The user plays games with us and
333 presents new arguments. */
334 char *new_str = malloc (top + 1);
336 nonoption_flags_len = nonoption_flags_max_len = 0;
339 memset (mempcpy (new_str, __getopt_nonoption_flags,
340 nonoption_flags_max_len),
341 '\0', top + 1 - nonoption_flags_max_len);
342 nonoption_flags_max_len = top + 1;
343 __getopt_nonoption_flags = new_str;
348 while (top > middle && middle > bottom)
350 if (top - middle > middle - bottom)
352 /* Bottom segment is the short one. */
353 int len = middle - bottom;
356 /* Swap it with the top part of the top segment. */
357 for (i = 0; i < len; i++)
359 tem = argv[bottom + i];
360 argv[bottom + i] = argv[top - (middle - bottom) + i];
361 argv[top - (middle - bottom) + i] = tem;
362 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
364 /* Exclude the moved bottom segment from further swapping. */
369 /* Top segment is the short one. */
370 int len = top - middle;
373 /* Swap it with the bottom part of the bottom segment. */
374 for (i = 0; i < len; i++)
376 tem = argv[bottom + i];
377 argv[bottom + i] = argv[middle + i];
378 argv[middle + i] = tem;
379 SWAP_FLAGS (bottom + i, middle + i);
381 /* Exclude the moved top segment from further swapping. */
386 /* Update records for the slots the non-options now occupy. */
388 first_nonopt += (optind - last_nonopt);
389 last_nonopt = optind;
392 /* Initialize the internal data when the first call is made. */
394 #if defined __STDC__ && __STDC__
395 static const char *_getopt_initialize (int, char *const *, const char *);
398 _getopt_initialize (argc, argv, optstring)
399 int argc ATTRIBUTE_UNUSED;
400 char *const *argv ATTRIBUTE_UNUSED;
401 const char *optstring;
403 /* Start processing options with ARGV-element 1 (since ARGV-element 0
404 is the program name); the sequence of previously skipped
405 non-option ARGV-elements is empty. */
407 first_nonopt = last_nonopt = optind;
411 posixly_correct = getenv ("POSIXLY_CORRECT");
413 /* Determine how to handle the ordering of options and nonoptions. */
415 if (optstring[0] == '-')
417 ordering = RETURN_IN_ORDER;
420 else if (optstring[0] == '+')
422 ordering = REQUIRE_ORDER;
425 else if (posixly_correct != NULL)
426 ordering = REQUIRE_ORDER;
431 if (posixly_correct == NULL
432 && argc == original_argc && argv == original_argv)
434 if (nonoption_flags_max_len == 0)
436 if (__getopt_nonoption_flags == NULL
437 || __getopt_nonoption_flags[0] == '\0')
438 nonoption_flags_max_len = -1;
441 const char *orig_str = __getopt_nonoption_flags;
442 int len = nonoption_flags_max_len = strlen (orig_str);
443 if (nonoption_flags_max_len < argc)
444 nonoption_flags_max_len = argc;
445 __getopt_nonoption_flags =
446 (char *) malloc (nonoption_flags_max_len);
447 if (__getopt_nonoption_flags == NULL)
448 nonoption_flags_max_len = -1;
450 memset (mempcpy (__getopt_nonoption_flags, orig_str, len),
451 '\0', nonoption_flags_max_len - len);
454 nonoption_flags_len = nonoption_flags_max_len;
457 nonoption_flags_len = 0;
463 /* Scan elements of ARGV (whose length is ARGC) for option characters
466 If an element of ARGV starts with '-', and is not exactly "-" or "--",
467 then it is an option element. The characters of this element
468 (aside from the initial '-') are option characters. If `getopt'
469 is called repeatedly, it returns successively each of the option characters
470 from each of the option elements.
472 If `getopt' finds another option character, it returns that character,
473 updating `optind' and `nextchar' so that the next call to `getopt' can
474 resume the scan with the following option character or ARGV-element.
476 If there are no more option characters, `getopt' returns -1.
477 Then `optind' is the index in ARGV of the first ARGV-element
478 that is not an option. (The ARGV-elements have been permuted
479 so that those that are not options now come last.)
481 OPTSTRING is a string containing the legitimate option characters.
482 If an option character is seen that is not listed in OPTSTRING,
483 return '?' after printing an error message. If you set `opterr' to
484 zero, the error message is suppressed but we still return '?'.
486 If a char in OPTSTRING is followed by a colon, that means it wants an arg,
487 so the following text in the same ARGV-element, or the text of the following
488 ARGV-element, is returned in `optarg'. Two colons mean an option that
489 wants an optional arg; if there is text in the current ARGV-element,
490 it is returned in `optarg', otherwise `optarg' is set to zero.
492 If OPTSTRING starts with `-' or `+', it requests different methods of
493 handling the non-option ARGV-elements.
494 See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
496 Long-named options begin with `--' instead of `-'.
497 Their names may be abbreviated as long as the abbreviation is unique
498 or is an exact match for some defined option. If they have an
499 argument, it follows the option name in the same ARGV-element, separated
500 from the option name by a `=', or else the in next ARGV-element.
501 When `getopt' finds a long-named option, it returns 0 if that option's
502 `flag' field is nonzero, the value of the option's `val' field
503 if the `flag' field is zero.
505 The elements of ARGV aren't really const, because we permute them.
506 But we pretend they're const in the prototype to be compatible
509 LONGOPTS is a vector of `struct option' terminated by an
510 element containing a name which is zero.
512 LONGIND returns the index in LONGOPT of the long-named option found.
513 It is only valid when a long-named option has been found by the most
516 If LONG_ONLY is nonzero, '-' as well as '--' can introduce
517 long-named options. */
520 _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
523 const char *optstring;
524 const struct option *longopts;
530 if (optind == 0 || !__getopt_initialized)
533 optind = 1; /* Don't scan ARGV[0], the program name. */
534 optstring = _getopt_initialize (argc, argv, optstring);
535 __getopt_initialized = 1;
538 /* Test whether ARGV[optind] points to a non-option argument.
539 Either it does not have option syntax, or there is an environment flag
540 from the shell indicating it is not an option. The later information
541 is only used when the used in the GNU libc. */
543 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
544 || (optind < nonoption_flags_len \
545 && __getopt_nonoption_flags[optind] == '1'))
547 # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
550 if (nextchar == NULL || *nextchar == '\0')
552 /* Advance to the next ARGV-element. */
554 /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
555 moved back by the user (who may also have changed the arguments). */
556 if (last_nonopt > optind)
557 last_nonopt = optind;
558 if (first_nonopt > optind)
559 first_nonopt = optind;
561 if (ordering == PERMUTE)
563 /* If we have just processed some options following some non-options,
564 exchange them so that the options come first. */
566 if (first_nonopt != last_nonopt && last_nonopt != optind)
567 exchange ((char **) argv);
568 else if (last_nonopt != optind)
569 first_nonopt = optind;
571 /* Skip any additional non-options
572 and extend the range of non-options previously skipped. */
574 while (optind < argc && NONOPTION_P)
576 last_nonopt = optind;
579 /* The special ARGV-element `--' means premature end of options.
580 Skip it like a null option,
581 then exchange with previous non-options as if it were an option,
582 then skip everything else like a non-option. */
584 if (optind != argc && !strcmp (argv[optind], "--"))
588 if (first_nonopt != last_nonopt && last_nonopt != optind)
589 exchange ((char **) argv);
590 else if (first_nonopt == last_nonopt)
591 first_nonopt = optind;
597 /* If we have done all the ARGV-elements, stop the scan
598 and back over any non-options that we skipped and permuted. */
602 /* Set the next-arg-index to point at the non-options
603 that we previously skipped, so the caller will digest them. */
604 if (first_nonopt != last_nonopt)
605 optind = first_nonopt;
609 /* If we have come to a non-option and did not permute it,
610 either stop the scan or describe it to the caller and pass it by. */
614 if (ordering == REQUIRE_ORDER)
616 optarg = argv[optind++];
620 /* We have found another option-ARGV-element.
621 Skip the initial punctuation. */
623 nextchar = (argv[optind] + 1
624 + (longopts != NULL && argv[optind][1] == '-'));
627 /* Decode the current option-ARGV-element. */
629 /* Check whether the ARGV-element is a long option.
631 If long_only and the ARGV-element has the form "-f", where f is
632 a valid short option, don't consider it an abbreviated form of
633 a long option that starts with f. Otherwise there would be no
634 way to give the -f short option.
636 On the other hand, if there's a long option "fubar" and
637 the ARGV-element is "-fu", do consider that an abbreviation of
638 the long option, just like "--fu", and not "-f" with arg "u".
640 This distinction seems to be the most useful approach. */
643 && (argv[optind][1] == '-'
644 || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
647 const struct option *p;
648 const struct option *pfound = NULL;
654 for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
657 /* Test all long options for either exact match
658 or abbreviated matches. */
659 for (p = longopts, option_index = 0; p->name; p++, option_index++)
660 if (!strncmp (p->name, nextchar, nameend - nextchar))
662 if ((unsigned int) (nameend - nextchar)
663 == (unsigned int) strlen (p->name))
665 /* Exact match found. */
667 indfound = option_index;
671 else if (pfound == NULL)
673 /* First nonexact match found. */
675 indfound = option_index;
678 /* Second or later nonexact match found. */
685 fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
686 argv[0], argv[optind]);
687 nextchar += strlen (nextchar);
695 option_index = indfound;
699 /* Don't test has_arg with >, because some C compilers don't
700 allow it to be used on enums. */
702 optarg = nameend + 1;
707 if (argv[optind - 1][1] == '-')
710 _("%s: option `--%s' doesn't allow an argument\n"),
711 argv[0], pfound->name);
713 /* +option or -option */
715 _("%s: option `%c%s' doesn't allow an argument\n"),
716 argv[0], argv[optind - 1][0], pfound->name);
718 nextchar += strlen (nextchar);
720 optopt = pfound->val;
725 else if (pfound->has_arg == 1)
728 optarg = argv[optind++];
733 _("%s: option `%s' requires an argument\n"),
734 argv[0], argv[optind - 1]);
735 nextchar += strlen (nextchar);
736 optopt = pfound->val;
737 return optstring[0] == ':' ? ':' : '?';
740 nextchar += strlen (nextchar);
742 *longind = option_index;
745 *(pfound->flag) = pfound->val;
751 /* Can't find it as a long option. If this is not getopt_long_only,
752 or the option starts with '--' or is not a valid short
753 option, then it's an error.
754 Otherwise interpret it as a short option. */
755 if (!long_only || argv[optind][1] == '-'
756 || my_index (optstring, *nextchar) == NULL)
760 if (argv[optind][1] == '-')
762 fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
765 /* +option or -option */
766 fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
767 argv[0], argv[optind][0], nextchar);
769 nextchar = (char *) "";
776 /* Look at and handle the next short option-character. */
779 char c = *nextchar++;
780 char *temp = my_index (optstring, c);
782 /* Increment `optind' when we start to process its last character. */
783 if (*nextchar == '\0')
786 if (temp == NULL || c == ':')
791 /* 1003.2 specifies the format of this message. */
792 fprintf (stderr, _("%s: illegal option -- %c\n"),
795 fprintf (stderr, _("%s: invalid option -- %c\n"),
801 /* Convenience. Treat POSIX -W foo same as long option --foo */
802 if (temp[0] == 'W' && temp[1] == ';')
805 const struct option *p;
806 const struct option *pfound = NULL;
812 /* This is an option that requires an argument. */
813 if (*nextchar != '\0')
816 /* If we end this ARGV-element by taking the rest as an arg,
817 we must advance to the next element now. */
820 else if (optind == argc)
824 /* 1003.2 specifies the format of this message. */
825 fprintf (stderr, _("%s: option requires an argument -- %c\n"),
829 if (optstring[0] == ':')
836 /* We already incremented `optind' once;
837 increment it again when taking next ARGV-elt as argument. */
838 optarg = argv[optind++];
840 /* optarg is now the argument, see if it's in the
841 table of longopts. */
843 for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
846 /* Test all long options for either exact match
847 or abbreviated matches. */
848 for (p = longopts, option_index = 0; p->name; p++, option_index++)
849 if (!strncmp (p->name, nextchar, nameend - nextchar))
851 if ((unsigned int) (nameend - nextchar) == strlen (p->name))
853 /* Exact match found. */
855 indfound = option_index;
859 else if (pfound == NULL)
861 /* First nonexact match found. */
863 indfound = option_index;
866 /* Second or later nonexact match found. */
872 fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
873 argv[0], argv[optind]);
874 nextchar += strlen (nextchar);
880 option_index = indfound;
883 /* Don't test has_arg with >, because some C compilers don't
884 allow it to be used on enums. */
886 optarg = nameend + 1;
890 fprintf (stderr, _("\
891 %s: option `-W %s' doesn't allow an argument\n"),
892 argv[0], pfound->name);
894 nextchar += strlen (nextchar);
898 else if (pfound->has_arg == 1)
901 optarg = argv[optind++];
906 _("%s: option `%s' requires an argument\n"),
907 argv[0], argv[optind - 1]);
908 nextchar += strlen (nextchar);
909 return optstring[0] == ':' ? ':' : '?';
912 nextchar += strlen (nextchar);
914 *longind = option_index;
917 *(pfound->flag) = pfound->val;
923 return 'W'; /* Let the application handle it. */
929 /* This is an option that accepts an argument optionally. */
930 if (*nextchar != '\0')
941 /* This is an option that requires an argument. */
942 if (*nextchar != '\0')
945 /* If we end this ARGV-element by taking the rest as an arg,
946 we must advance to the next element now. */
949 else if (optind == argc)
953 /* 1003.2 specifies the format of this message. */
955 _("%s: option requires an argument -- %c\n"),
959 if (optstring[0] == ':')
965 /* We already incremented `optind' once;
966 increment it again when taking next ARGV-elt as argument. */
967 optarg = argv[optind++];
976 getopt (argc, argv, optstring)
979 const char *optstring;
981 return _getopt_internal (argc, argv, optstring,
982 (const struct option *) 0,
987 #endif /* Not ELIDE_CODE. */
991 /* Compile with -DTEST to make an executable for use in testing
992 the above definition of `getopt'. */
1000 int digit_optind = 0;
1004 int this_option_optind = optind ? optind : 1;
1006 c = getopt (argc, argv, "abc:d:0123456789");
1022 if (digit_optind != 0 && digit_optind != this_option_optind)
1023 printf ("digits occur in two different argv-elements.\n");
1024 digit_optind = this_option_optind;
1025 printf ("option %c\n", c);
1029 printf ("option a\n");
1033 printf ("option b\n");
1037 printf ("option c with value `%s'\n", optarg);
1044 printf ("?? getopt returned character code 0%o ??\n", c);
1050 printf ("non-option ARGV-elements: ");
1051 while (optind < argc)
1052 printf ("%s ", argv[optind++]);